The plant hunters  , being an examination of collecting, with an account of the careers & the methods of a number of those who have searched the world for wild plants 
	Michael Sidney Tyler-Whittle 
 - 	Philadelphia,   Chilton Book Co.   [1970] 
 - 	xii, 281 pages illustrations, portraits  PC   25 cm 
<br/><br/><label>ISBN: </label>1555540376 
<br/><br/><label>Dewey Class. No.: </label>579.6